| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adv prt] [prep] | 1217 |
|
| 2 | could [vb infin] [adv prt] [prep] | 1217 |
|
| 3 | [modal v] [vb infin] [adv prt] against | 49 |
|
| 4 | could [vb infin] [adv] against | 9 |
|
| 5 | could [verb] [adv prt] against | 9 |
|
| 6 | could [vb infin] [adv prt] against | 9 |
|
